Spectral properties of signal fading and Doppler spectra distribution in urban mobile communication links

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    18 Scopus citations

    Abstract

    In this work, we continue the analysis of a probabilistic approach and the corresponding stochastic multi-parametric model of wave propagation, in built-up areas with randomly distributed buildings. We have concentrated on the spectral properties of signal strength spatial variations and on Doppler spread spectrum distribution of signal power. The analysis is based on a unified stochastic approach of radio wave propagation above the built-up terrain with applications to mobile communications. We analyze the signal power spectrum of spatial frequencies and the signal power distribution in the Doppler domain for moving vehicles, taking into account a Doppler shift proportional to the vehicle antenna speed relative to the base station. The comparison between the theoretical prediction and experimental data was motivated by the proposed stochastic model and other existing statistical models to verify the signal power distribution in the Doppler domain for various urban environments and terminal heights with respect to building rooftops. New effects of terrain features on signal spectrum are obtained, examined and compared with existing models.

    Original languageEnglish
    Pages (from-to)113-126
    Number of pages14
    JournalWireless Communications and Mobile Computing
    Volume6
    Issue number1
    DOIs
    StatePublished - 1 Feb 2006

    Keywords

    • Doppler spectra
    • Fading
    • Mobile communication links
    • Urban environment

    ASJC Scopus subject areas

    • Information Systems
    • Computer Networks and Communications
    • Electrical and Electronic Engineering

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